WO2011110047A1

WO2011110047A1 - Disposable cystoscope sheath

Info

Publication number: WO2011110047A1
Application number: PCT/CN2011/000268
Authority: WO
Inventors: 林超; 段孝敏
Original assignee: 上海祥秀医药科技有限公司
Priority date: 2010-03-12
Filing date: 2011-02-21
Publication date: 2011-09-15
Also published as: CN101803903A

Abstract

A disposable cystoscope sheath for use with an endoscope includes an endoscope channel (2) and an operating channel (3)，which are arranged inside the cystoscope sheath. The endoscope channel (2) and the operating channel (3) abut against each other in parallel, with inner cavities thereof communicating with each other. The endoscope channel (2) made of medical rigid plastic has an oval-shaped cross-section with a recess, and the axial edge of the recess is connected with the axial edge of the recess of the cross-section of the operating channel (3). The operating channel (3) is made of soft material such as silica gel.

Description

Disposable bladder mirror sheath

The present invention relates to a minimally invasive surgical instrument, and more particularly to a disposable bladder sheath sheath for use with an endoscope. Background technique

Cystoscopy is one of the most basic endoscopic techniques in urology. It has a history of more than 100 years and has a wide range of applications. It is an endoscope channel in which the endoscope body is placed in the cystoscope sheath. The instrument is placed in the working channel of the cystoscope sheath, and the cystoscope is inserted into the bladder through the urethra of the patient to perform exploration and treatment in the bladder. .

At present, the bladder sheath material is metal, round, and has certain damage to the urethra mucosa when entering the urethra, and because the price of the bladder mirror is relatively expensive, a cystoscope in a hospital should be used for 5 to 10 years. Long-term application causes scale and rust to accumulate in the lumen of the cystoscope and the outer sheath of the mirror. When applied, the mucosal damage and cross infection of the urethra are aggravated. Although the instrument should be sterilized during the interval between the two cystoscopy, due to the wide application of the cystoscope and the large amount of surgery, the patients are often cross-infected due to incomplete disinfection. At the same time, for patients who need to undergo ureteroscopy, it is also necessary to put a cystoscope to find the ureteral orifice, put a guide wire, and then withdraw the cystoscope. The ureteroscope enters the bladder along the guide wire and then enters the ureter. Surgery, aggravating damage to the urethra. Summary of the invention

The technical problem to be solved by the present invention is to provide a disposable cystoscope sheath which has less damage to the urethral mucosa of the patient, is convenient to operate, and is inexpensive.

In order to achieve the above object, the technical solution adopted is: a disposable cystoscope sheath, including an endoscope channel and a working channel built in the mirror sheath, the side of the endoscope channel is provided with an inlet and outlet valve, and the rear end phase of the sheath sheath Connecting a double-hole or single-hole connector, wherein the endoscope channel is connected in parallel with the working channel, and the inner cavity is connected, and the endoscope channel is made of medical hard plastic, and the cross section is notched. The elliptical shape, the axial edge of the notch is in contact with the axial edge of the cross section of the working channel, and the working channel is made of a soft silicone material. The double-hole or single-hole channel end of the two-hole connector or the single-hole connector is externally connected to the anti-backflow cap. In addition to being used for a disposable cystoscope sheath, the present invention can also be used as a ureteroscope sheath for ureteroscopic surgery.

The beneficial effects of the invention are as follows: since the endoscope channel is elliptical, the insertion port area is reduced, and when the cystoscopic surgery is performed, the diameter thereof can be smaller than that of the conventional cystoscope, and the transurethral bladder enters the bladder and damages the urethra. Smaller, the patient feels more comfortable; the working channel of the lower half of the elliptical sheath is made of soft silicone material, which has a certain elasticity, which increases the space of the working channel, and can be put into 1~2 instruments. Multi-channel instrument operation, convenient operation and operation; the bladder mirror sheath medical hard plastic and silicone soft material are inexpensive to manufacture, disposable, clean and hygienic, and avoid cross-infection between patients.

When the ureteroscope is used, the present invention can also be used as an outer sheath of a ureteroscope, and simultaneously monitor images of the bladder and the ureter, saving operation time and making the operation safer. DRAWINGS

The present invention will be further described below based on the description of the drawings and the examples:

Figure 1 is a schematic view showing the structure of an endoscope mirror body;

2 is a schematic exploded view of a cystoscope sheath structure;

Figure 3 is a schematic view of the structure of a single-hole connector.

In the figure: 1 - endoscope scope; 2 - endoscope channel; 3 - working channel; 4 a valve; 5 - endoscope card slot; 6 - double hole connector; 7 - anti-reverse flow cap; - Single hole connector. detailed description

The following examples are described by taking a disposable cystoscope sheath as an example.

1 is a schematic view of the structure of the endoscope mirror, and FIG. 2 is a schematic view of the exploded structure of the cyst sheath. As shown in FIG. 2, the disposable cystoscope sheath includes the endoscope channel 2 and the working channel 3 built in the mirror sheath. The side of the endoscope channel 2 is provided with an inlet and outlet valve 4, and the rear end of the mirror sheath is connected to the double-hole connector 6 or the single-hole connector 8 shown in FIG. 3, which is characterized in that: the endoscope channel 2 is connected in parallel with the working channel 3, the inner cavity is connected, the endoscope channel 2 is made of medical hard plastic, has a notched elliptical shape in cross section, the axial edge of the notch and the cross section of the working channel 3 The axial edges of the notches are joined, and the working channel 3 is made of a soft silicone material. The two-hole channel of the two-hole connector 8 or the single-hole channel end of the single-hole connector 8 is externally connected to the anti-countercurrent cap 7.

Compared with the traditional stainless steel sheath, due to the elliptical design of the endoscope channel 2, the insertion port area is reduced, and the damage to the urethra is relatively small, and the patient feels comfortable. The working channel 3 is made of a soft material, which relatively increases the operating space and is convenient for surgery.

The bladder mirror sheath medical hard plastic and soft silicone material are low in price, and are used as a disposable device, which is clean and hygienic, and avoids cross infection between patients.

When the ureteroscope is used, the invention can also be used as the outer sheath of the ureteroscope, and can monitor the images of the bladder and the ureter, which can save the operation time and make the operation safer.

In use, the endoscope scope 1 shown in Fig. 1 is inserted into the endoscope channel 2 of the cystoscope sheath shown in Fig. 2, and the endoscope scope 1 and the cystoscope sheath are engaged and fixed by the endoscope card slot 5.

The front end of the mirror sheath valve 4, connected to the carbon dioxide gas source as an intake valve, or as a liquid inlet and outlet valve.

The single-hole closer 8 shown in Fig. 3 or the double-hole closer 6 shown in Fig. 2 is connected to the working channel 3, and the working channel 3 is made of a soft silicone material, and one or two instruments can be placed for cystoscopy or Treatment, easy to operate. ^

The single hole closer 5 or the double hole closer 6 is externally connected to the anti-countercurrent cap 7.

As described above, the application of the present invention is not limited to a cystoscope, and can also be used as an outer sheath of a ureteroscope for a patient who needs to perform ureteroscopy. The ureteroscope is directly into the bladder through the soft sheath of the cystoscope of the present invention. Operation in the ureter. At the same time, it can monitor the image of the bladder and ureter, save operation time and make the operation safer.

The preferred embodiment of the invention has been described above, and is intended to be illustrative of the embodiments of the invention. However, it should be noted that the invention is not limited to the embodiments discussed above, and any obvious variations or equivalent substitutions should be considered as falling within the scope of the invention.

Claims

Rights request:

1. A disposable bladder sheath comprising an endoscope channel (2) and a working channel (3) built into the sheath, the valve (4) being placed on the side of the endoscope channel (2), the rear end of the sheath Connecting a two-hole connector (6) or a single-hole connector (8), characterized in that: the endoscope channel (2) is connected in parallel with the working channel (3), the lumen is connected, and the endoscope channel ( 2) Made of medical hard plastic, with a notched elliptical shape, the axial edge of the notch meets the axial edge of the working channel (3), which is made of a soft silicone material.

The disposable cystoscope sheath according to claim 1, characterized in that: the two-hole connector (6) is provided with a two-hole channel and a single-hole connector (8) is provided with a single-hole channel, the end portion External anti-reverse flow cap (7).

3. The disposable cystoscope sheath of claim 1 wherein the ureteroscope sheath is used for ureteroscopic surgery.